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Go Back   SailNet Community > Skills and Seamanship > Seamanship & Navigation > Boom Preventer or Not?
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Seamanship & Navigation Forum devoted to seamanship and navigation topics, including paper and electronic charting tools.


Thread: Boom Preventer or Not? Reply to Thread
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Topic Review (Newest First)
10-10-2011 06:34 PM
captflood GREETINGS EARTHLINGS, Ive used a permantly rigged line from the clue end of the boom to gooseneck with a snap shakle this is then can be connected to a line rigged from a srong point froward to use as a preventer and is very quick and easey to change sides when gybeing. REMEMBER SAFETY FIRST ME SECOND. GO SAFE
10-10-2011 05:06 PM
tdw
Quote:
Originally Posted by marksatterfield View Post
No, the question was what happens if the preventer IS installed? If the preventer is not installed, knocking heads off. If the preventer is installed (and is not let off during a gybe for whatever reason), is a violent round up and knock down eminent?

Yeah, it is a bit odd resurrecting a thread this old but it doesn't specifically require an answer or even a response from the OP so no real harm done.

The question of the preventer holding up the main when you do gybe is probably the best argument for using a boom brake. Maybe ?
10-10-2011 02:02 PM
marksatterfield
Quote:
Originally Posted by Barquito View Post
Or knock someones head off (or tear the binnical off etc.). Just as valid now as it was 10 years ago.
No, the question was what happens if the preventer IS installed? If the preventer is not installed, knocking heads off. If the preventer is installed (and is not let off during a gybe for whatever reason), is a violent round up and knock down eminent?
10-10-2011 01:11 PM
MobiusALilBitTwisted This was about 10 years old it is best to start a new thread not dig up one that is long DEAD.
10-10-2011 11:54 AM
Barquito
Quote:
So what happens if a preventer is attached in very heavy winds, and an accidental gybe occurs? Does the boat round up violently with complete loss of rudder, then a danger of capsizing?
Or knock someones head off (or tear the binnical off etc.). Just as valid now as it was 10 years ago.
10-10-2011 02:44 AM
marksatterfield So what happens if a preventer is attached in very heavy winds, and an accidental gybe occurs? Does the boat round up violently with complete loss of rudder, then a danger of capsizing?

Without the preventer, an accidental gybe in heavy winds could take out the boom, or any of the rest of the standing rigging. Not good.
08-08-2001 07:34 PM
kimberlite
Boom Preventer or Not?

the marion bermuda race requires a boom brake or preventer.
in the ocean you will find it is easy to jibe the main even when not running.
the vang tied to the stanchion bases is an accident waiting to happen.

they suggest a line run on either side of the boom from pad eyes on the end of the boom to cleats on either side of the boom at the gooseneck.

then a line is run from the cockpit to the bow with a block at the bow. this line is then run back to either line on the boom connected with a snap shackle.
the lines along the boom enable you to hook up the preventer even if the boom end is outboard. we always hook up the preventer offshore unless we are beating.
eric
06-21-2001 09:46 AM
cditzen
Boom Preventer or Not?

I''d lead them to blocks with built-in cam-cleats on each side of the rail. That way I could handle the preventor from both port/starboard, which would be nice esp. in a racing situation.

...Chris
06-20-2001 05:21 AM
paulk
Boom Preventer or Not?

It looks like that by double-ending the line at the boom end you could increase the "stretchiness" of the arrangement so as to help with the broaching issue. Works with shock cord for our jib lead car tackles.
06-19-2001 07:24 PM
JeffH
Boom Preventer or Not?

Double ended? Where would you have the two ends?
Jeff
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